| All Patents in class 81/427 |
Patents 1 -
10
of 48
      |
| Picture | Number | Date | Patentee | Title |
 | 63,356 | Apr. 02, 1867 | J.N. Arvin | Improved Wrench and Tongs |
 | 217,117 | Jul. 01, 1879 | W.B. Killough | Wrench |
 | 274,545 | Mar. 27, 1883 | J.H. Hine, F. Armstrong | Wrench |
 | 318,089 | May 19, 1885 | F. Crocker | Pipe Wrench |
 | 338,326 | Mar. 23, 1886 | H.M. Wilson | Pipe Wrench |
 | 367,786 | Aug. 09, 1887 | E.O. Carvin | Improvement in Pipe-Tongs |
 | 401,513 | Apr. 16, 1889 | C. Pomeroy | Wrench |
 | 419,816 | Jan. 21, 1890 | B.G. Berrien, Jr. | Improved Pipe Wrench |
 | 430,768 | Jun. 24, 1890 | M. Cooper | Pipe Tongs |
 | 434,409 | Aug. 12, 1890 | H.J. De Voe, G.L. Sutton | Wrench |
